Tessan

Tessan is a Swedish feminine name that originated as a familiar or hypocoristic form of Teresia, the Scandinavian adaptation of Theresia, itself derived from the Greek name Therasia or Theresa, whose root meaning is uncertain but may relate to the Greek word for summer or to the island of Thera. It developed as an affectionate diminutive in Swedish-speaking communities and remains primarily a given name within Scandinavian tradition. Related forms include Teresia, Theresa, and Teresa.